TSAG-based cryogenic Faraday isolator

Starobor, Aleksey; Yasyhara, Ryo; Snetkov, Ilya; Mironov, É. A.; Palashov, O.

doi:10.1016/j.optmat.2015.07.013

Cited by 17 publications

(5 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Further experiments confirmed the possibility of replacing the single crystal material with ceramics without a loss of functionality. In recent years some works have been published on the production of magneto-optical ceramics based on terbium-aluminum garnet Tb 3 Al 5 O 12 (TAG) [3,4] and terbium scandium aluminum garnet crystals (TSAG) [5,6], possessing a higher Verdet constant value and better thermo-optical properties in comparison with TGG. However, the use of these materials is limited by the maximum possible concentration of terbium in the structural unit (37.5 at%), which determines the Verdet constant.…”

Section: Introduction mentioning

confidence: 99%

Sinterability of nanopowders of terbia solid solutions with scandia, yttria, and lutetia

et al. 2018

View full text Add to dashboard Cite

The synthesis of nanopowders of terbia compounds with scandia, yttria, and lutetia was carried out using a self-propagating high-temperature synthesis method involving a mixture of nitrates of metals and glycine as a precursor. The nanopowder phase transformations were investigated using X-ray diffraction analysis. It was found that lutetia has a negligible effect on the phase formation in terbia. On the other hand, yttrium and scandium ions significantly suppressed crystallization. The densification kinetics of nanopowders of the Tb 2 O 3 compounds and the microstructure of ceramics after microwave sintering were studied using dilatometry and scanning electron microscopy. The introduction of scandia, yttria, or lutetia contributed to the intensification of the densification of the terbia ceramics when heated in a microwave field. Near full-density materials of terbia solid solutions with lutetia and yttria were obtained at about 1600-1640 ℃. The ceramics of scandia-terbia compounds contained the second phase, which causes light scattering.

show abstract

Section: Introduction mentioning

confidence: 99%

Sinterability of nanopowders of terbia solid solutions with scandia, yttria, and lutetia

et al. 2018

View full text Add to dashboard Cite

show abstract

“…Another material, which could be used as an advantageous alternative to the TGG crystal, is the terbium scandium aluminium crystal (TSAG) [112,113], which possesses ∼25% higher Verdet constant [114,115], lower thermo-optical constant Q and negative optical anisotropy parameter [41]. All of these properties ensure that the TSAG scores much higher in the FOM parameter than TGG, which has marked this material as one of the prime candidates of several other scientific investigations [37,[116][117][118]. The sodium terbium fluoride (NTF) [50,119] and the potassium terbium fluoride (KTF) crystals [72,120,121] also deserve attention: although they possess ∼20% lower Verdet constant, they exhibit a higher FOM parameter than the TGG crystal.…”

Section: Vis-nir Region (400 < λ < 1100 Nm)mentioning

confidence: 99%

Verdet Constant of Magneto-Active Materials Developed for High-Power Faraday Devices

et al. 2019

View full text Add to dashboard Cite

We review the progress in the investigation of the Verdet constant of new magneto-active materials for the Faraday-effect-based devices used in high-power laser systems. A practical methodology for advanced characterization of the Verdet constant of these materials is presented, providing a useful tool for benchmarking the new materials. The experimental setup used for the characterization is a flexible and robust tool for evaluating the Faraday rotation angle induced in the magneto-active material, from which the Verdet constant is calculated based on the knowledge of the magnetic field and the material sample parameters. A general model for describing the measured Verdet constant data as a function of wavelength and temperature is given. In the final part of this review, we present a brief overview of several magneto-active materials, which have been to-date reported as promising candidates for utilization in the Faraday devices. This overview covers room-temperature investigations of the Verdet constant of several materials, which could be used for the ultraviolet, visible, near-infrared and mid-infrared wavelengths.

show abstract

“…The resultant device can deliver a 90° polarization rotation for light in a round trip. In order to access optical isolators, many techniques and designs have been employed [10][11][12][13][14]. MOIs based on magnetophotonic crystals (MPCs) are one of the best candidates for compact isolators [15,16].…”

Section: Introductionmentioning

confidence: 99%

Design of high-performance and tunable magneto-optical isolators for He–Ne laser

Zamani¹

2019

Laser Phys.

View full text Add to dashboard Cite

Herein, we report on high-performance magnetophotonic crystal (MPC) structures, which can be adjusted to create perfect magneto-optical isolators (MOIs) for helium-neon lasers operating at a wavelength of 632.8 nm. The adjustment is carried out by tuning the applied magnetic field to use the high potential of the CeF 3 as a new and transparent visible Faraday rotator. For practical purposes, to avoid instabilities due to wavelength fluctuations, we show that achieving a suitable tunable MOI with a flat-top response is possible when the appropriate MPC design is approached.

show abstract

TSAG-based cryogenic Faraday isolator

Cited by 17 publications

References 33 publications

Sinterability of nanopowders of terbia solid solutions with scandia, yttria, and lutetia

Sinterability of nanopowders of terbia solid solutions with scandia, yttria, and lutetia

Verdet Constant of Magneto-Active Materials Developed for High-Power Faraday Devices

Design of high-performance and tunable magneto-optical isolators for He–Ne laser

Contact Info

Product

Resources

About